 She herself recognizes Myshkin as the possible realization of her innocence, but convinced also of her own corruption, she is equally driven by self-destructive and vengeful urges, and she refuses to cast herself in the role of a corrupter of children like Totsky.Thus she chooses to give herself to Rogozhin, for whom she can wholly become the 'fallen' woman.This is not because Rogozhin himself in any way morally condemns her, but because his mad and violent obsession with her resonates with her self-destructive urge, or the voice that identifies her as guilty.